WPForce is a suite of WordPress Attack tools. Currently this contains 2 scripts – WPForce, which brute forces logins via the API, and Yertle, which uploads shells once admin credentials have been found. Yertle also contains a number of post exploitation modules.
You can download it from the following link: https://packetstormsecurity.com/files/download/142963/WPForce-v.1.0.0.tar.gz
Source: https://packetstormsecurity.com/files/142963/WPForce-1.0.0.html